I'm a producer. I produce short film and music, amongst others.
I'm also a developer. I use xCode, Dreamweaver, and Unity to develop applications and games.
Developing - that's what computers are still for. And devs know that.
Developing on-device will come, in time. I, for one, don't have a problem with needing an extra dev machine, specifically for the purpose. I understand this represents a financial burden for some, especially considering the cost of a new MacBook. I'm fortunate enough to have had a Mac by my side since I was 14, and I'm 29 now, which means more than half my life. So for me, already a Mac user, the iOS dev ecosystem was actually a blessing. I understand, however, I am obviously an outlier in that set of data.