Comparing Kyouya AT ALL to Makoto, rofl. And let's not forget that Sekai was the true villain in that anime :P
As for this episode:
I feel like SO much could be done if people, especially Kyouya, just talked more to each other! In that dialogue with Tsurayuki, why didn't Kyouya do one of his motivational speeches? The thing I wanted him to tell the others the entire time was something like: "Everyone, I know that I asked you to do something unreasonable this time. But ... this is a promise: Let's make another game, and this time we'll take our time. Let's do this!". And then individually tell them how fantastic their work is and that without the extreme time pressure they can truly apply their skill to it.
But he just gave up, let Tsurayuki go and eh ...
Now he's lost anyway. If he undoes the current presence, he will 1.) kill his daughter and 2.) be gay, because wife Shinoaki is as great as his life can ever be :P
Accept that Tsurayuki took a different route and move on. Ultimately, it's "just" game development, it's not like people's lives depends on choosing a specific career, most people don't get to be that picky. Enjoy your wife, have fun with your super cute daughter, and live life. You kinda cheated, but you didn't intend to, so don't feel to bad about it. Time travel is always cheating inherently.