Ah, everyone had it in for those characters back in the day. Sure, I hated them too, but it took me years to realize some of it was tongue in cheek. The Tinky Winky stuff was actually there and put in smugly by the British production team as a gag, clearly. I have an odd appreciation for the fact that it had slight winks and nods to this being a dumb show here and there, but it was all subtext. The names clearly come out of a level of "we know full well this is stupid" to the point where it either comes off as the dumbest kid's show ever produced or maybe the most brilliant piece of satire ever conceived... or it could easily fall into both. Kids don't realize it's supposed to be condescendingly stupid and parents probably didn't catch up on the fact they're trying to make the show as purposely annoying as possible.
Though, as far as talking toys go, cheap speakers and compressed sound files make anything sound like anything, but to me, they sound like nothing. Happy Meal and Burger King Kid's meal toys shouldn't have higher and more respectable technology than a kid's book that retails for 10+ bucks.
Seriously... I can't believe they still make those things. They had a Star Wars one just last year.