There is really no indication of that at all in the show except for the fact that they took the castle at the end, which is actually quite absurd anyway because taking a castle is supposed to be hard. Not to mention the Lannister army had already suffered many blows, they even needed the Tyrell army to win Blackwater, this idea of the Tyrells not being "good soldiers" and the Tarlys being they only good ones has no real basis on the show besides wanting to rush things up.
And Tarly seems not at all bothered Cersei blew up the remains of house Tyrell in the sept, which everyone freaking knows, even Hotpie mentions it. He doesn't care about honor, except that he does, for some reason! it's so lazy, nonsensical writing to tie up house Tyrell and remove them as a factor, it's pretty damn annoying, it's as satisfying as a scene of Olenna "going back to her home planet and dying on the way there".