Yeah, i havent had any issues with the sides tearing, with the exception of trying to open them up (untape) which is not often for me, being IC usually it's just a change and even if taking one off for whatever reason, i dont bother trying to untape them anymore at all, once the tapes are on therre for awhile, they are NOT coming off.
I prefer them to be perm fixed in place as opposed to any chance of them comming loose under for any reason. A loose tape will cause a leak IMHO and that is the main reason i use diapers is to NOT have wet clothes/bedding/furniture.
So, the very few times where i might want to take one off and even rarer to be completely dry, I'll take the one wasted diaper over the possibilit of a loose tape. You also could cut the wing and tape it back up if your really wanting to to save the diaper for a reuse per se.
After all, once a diaper is on, it shouldnt come off for the most part IMHO.