I've found an oil change with the plastic plug to be easy to do. I'm a long time member of 3 F150 forums and this is the 1st time I've read about one of the plastic drain plugs breaking. I bought a pair of Ford replacement plugs (Amazon) and switched my original one out on the 1st oil change after my truck crossed the 50,000 mile mark. The original plug/o-ring was not leaking. About the time I ordered the replacement plugs I found that the OEM green o-ring is a #208. Doing it again, I'd simply find a source for the o-ring and replace it from time to time and keep using the plastic body. I have a thread over on F150forum.com detailing a 2016 2.7 F150 a friend of mine has that is approaching 350,000 miles. Pat says he's replaced his 3 times and only when he was told it was leaking at oil change time.
There are lots of plastic parts on today's engines. To me, it's a non-issue.