They are very popular. But lots of breeds are good for meat (terminal breeds).
I wouldn't call them jack of all trades, because they aren't that good(!) Like anything, you have to make compromise. There are breeds that are easier lambing but never get as well muscled. Breeds that grow quicker, breeds that grow slower. I think texel are so popular because they tick lots of boxes without being perfect in any one box - if that makes sense? I also think they have benefited from very good, Pro active society. And lot of people use them just because everyone else does!!
They've grown on m