This about sums things up, iome. RYR will not repeat the mistake of 2017, when flying opportunities were abundant but there were no sufficient crews which led to flight cancellations and pilots being asked to volunteer to work during their annual vacations for extra pay. Now, they will make sure that enough crews are trained and ready ahead of time. Why it will be largely cadets instead of experienced guys and girls has already been detailed an uncountable number of times. Cost and standardisation, in a nutshell.
So, as long as you are under the clear understanding that this is a long-term investment and you do not do something stupid like putting mortgage on the family home without having a sound alternative source of income, you're probably good to go. If that's where you see yourself for the coming years - fantastic. If not - well, you can always wait for other opportunities. There will be other opportunities, no matter how bad it might look now.