Number of people I've seen outright dislike the episode (not counting youtube comments which are probably trolls): 1
I've talked to several who were lukewarm, but no one but you have said it's not at least a decent episode. Seriously; scour the equestria daily comments on the episode. See if you can find someone who hated the episode. I'll wait.
If it's your personal shark jumping, that's fine. Understand though, two dud episodes does not ruin a series. Isn't it a bit presumptuous to assume?
Truth be told, I'm still a bit skeptical since the main creative lead is now largely out of the picture. However, I'm still giving it a good 8 or so more episodes before calling anything. Firstly of course I think I'd need more evidence before calling shark jumping, and secondly this series has huge value to me through analysis, and that requires time. Most shows, when you dig deep into them, have plot holes and other junk. This one, I just find more things to like.* I was pretty lukewarm to the Return of Harmony two parter when I first saw them. Now they're among my favorites.
*Should be noted that neither Lesson Zero or Luna Eclipsed have really shown much in this area yet. Lesson Zero was an almost total failure, actually, but Luna Eclipsed was pretty good in the details except the plot holes concerning episode 1.