No it wasn't! The height limit was removed decades ago and correctly so-when I joined in the mid 90s women still carried smaller truncheons and wore skirts. Times have moved on. Policing isn't about how big you are. It requires many more skills than frankly being able to physically over power someone. We are all given the same training. Nowadays, certainly in my force, the front line is made up largely of young officers who are very fit, bright and extremely brave.
Personally I am in my early 50s and never been fitter. I'm not sure where these so-called 'gut buckets' are-they are a rarity for sure.
Pay and conditions have been eroded over the last decade, pensions have been affected, but its still a great career especially for young people who want to make a difference.