*To me*, the way I look at it is that what a company or individual or site says & does Should be Completely honest. I'm not naive enough to think that every one is, but that's one [major] way that I judge them. And that informs [helps me decide] my decisions.
If a company/site exaggerates in describing or advertising their product(s), I'll visit & download or buy from them [often much] less often. If a company is totally misleading in a product's description, if they're honest they'll refund any money paid -- something that's in fact very much enforced as policy at ebay, Paypal, Amazon's market sellers etc. If there's no money paid, they'll do what they can to make it right, plus either correct their published description or remove that product listing.
If they don't, at the very least I'll tell others about my experience so they can avoid them. I'm far from alone, & the same applies to services, particularly in the US where rating sites like Yelp are somewhat common.
...I tend to think that this "big goof" is not that big as it seems;) It's quite common.
And I'm fine with that, just get used to it. When I see the title, which I know is a browser game and it couldn't be a downloadble one, I realize that there'll be something like a game client or just a shortcut.
In my case I'm not a gamer, but I download games I install on my wife's PC. When I see a game that looks like it might interest her, I've no idea whether it's a browser-only title or not -- when I visit a game site the only way I can tell beforehand is by the site's description. The same goes for required clients.
I've tried to contact them in the same way as Dragonlair, but received no reply. So, I get used to it. As for toomkygames.com, at least they are open to the public and make changes for the better, as I can see. And that - I think - is really great.
I'm NOT saying that you should change you opinions or anything -- these are just mine... I'm willing to put up with a game site doing stuff like offering toolbars etc. as long as they're up front about it, & give me a choice -- I get the game, & pay for it by letting them offer me whatever. It's no different than watching TV or online video with ads that pay for the content.
If OTOH they do something that they're not up front about, I don't trust them as much, if at all. Whether I visit or download from that site in the future depends on how badly I want something that they might have to offer -- *might* since that game might not really exist. And at the very least they're at the bottom of my lists.
When it comes to getting "used to it", I'm afraid I get a bit philosophical... I don't want to lower my standards. I don't want to be dishonest for example, consoling myself by saying that's the way everyone else is. And I want to assume the best about everyone else, at least until I'm given reason not to. If I didn't or don't, it's kind of like: "What's the point?" Put another way, expect the best, deal with the rest. To me getting "used to it" means to expect the worst, & if I expect the worse, why get up in the morning?
Now the point of all that isn't to say anyone's right or wrong. I'm pretty much Mr. Average in my attitudes &/or habits. Which is all to say that if someone from ToomkyGames reads this, maybe they'll be better informed about the consequences of experiences like Dragonlair's, which she has been generous to share. She may just be one of us, but she's all of us too. ;)