Very few 14yr freshman can compete at Varsity level even if they have better skills. the sheer size, strength and game speed is much higher then what they have had to compete against. as a catcher this problem will be magnified much more then for an outfielder.
I would also say for the vast majority of freshmen (at least in our area) they would be better served for themselves to be playing JV for a year then to be rushed to Varsity.
Just my opinion as a father but mine had a similar situation last year - I honestly believe he would have been one of the top 9 hitters for the V team...but he spent the whole season at JV in the 3 or 4 hole and continued to develop, earned respect of the upper classmen and had a great year. I have no doubt he will be a V starter this year as Soph and will be much more prepaired for it.
The coach had it right for the big picture even if it most people weren't smart enough to see it!!