I think people are overlooking the fact that Apple expected to have an entire year to continue on production so that they could continue to roll out new content on a consistent schedule. They only just hit the one year mark of being in service and so far, 8 of those months have been under COVID, where all production has basically come to a halt.
No streaming service is rolling out a plethora of new content like they have been. Not even network TV. This has totally messed up all services and will continue to mess them up for at least a year to come.
You really can't compare the offerings of services that have been in force for several years against the new guy. Change the scenario and then really take a look at them. What if they all debuted on the same day under the same circumstances (COVID lockdowns)... do you really think ANY of them would have have faired any better?
Apple will grow it's library over time, just like the other services have. Should you pay a monthly sub to a service with limited offerings on a continual basis? No. You subscribe when the content has an opportunity to catch up, then subscribe for a month so that you can watch it at the pace that you like, which for most people, is binge style.
Apple has some hits and misses... but then so do a all the other services. The price is pretty damn cheap compared to most of the other services... the cheapest if you consider the 1 year free.
It's only year one and it really isn't a true 1st year because of the COVID crap. It has a lot of promise and I will be keeping an eye on it for new gems.