Phil hasn't changed. He is in fact incapable of change. The only reason why some would say that he is/has changed is due to his reacting to temporary anxiety/anger/frustration from some form of external pressure that they haven't witnessed from him before or only to a smaller degree.
If you go back far enough you will realize that the Philbert you see today is the same Philbert that was making shitty videos in his condo with a camera pointed at the screen. The only thing that has really changed is he has changed one condo...for another condo.
You might be under the illusion that he has changed due to his censoring himself and his attempts to pignotize everyone, 'I've changed, I'm not the same guy as I was X+1 years ago' but if you scrape just a little bit of grease off his surface you'll find all the same shitty jokes, 'commentary', and opinions.