Since you can afford it, and have already decided to do it, and have a guaranteed job to return to, then why not!
Flying schools, just like airlines, need to survive in these difficult times. They need customers with the money to walk through the door. Their employees also rely on the continuing turnover of trade.
If you can afford to fly first class and take three holidays a year then yes keep on doing it, because either mine or someones elses job depends on you and others to keep spending.
I have heard this expression from highly experienced pilots, other opinions would be great! "now is the best time to train to be a commercial pilot as once training has finished the economey will be on its way to recovery"
Whilst I cannot say that I have heard it from any experienced pilots, you might be right. Given that you are not going out on a limb based on this "expression" then what does it matter?
Good luck.