The fire blankets in the engine bays were notoriously bad and a tiny amount of damage would render them unserviceable according to the TOs. we're talking miniscule tears and cuts in a piece of material that wrapped all the way around the engine. Every time we pulled a motor, it was almost a guarantee that the fire blanket would need to be replaced, oh and guess what, they weren't being made in large enough numbers to keep up with the demand. A 3/4 in tear would ground a jet for weeks. That's the reason they don't exist on the bone anymore. Now there is a chemical that gets painted on the engine bay.
In one breath you say that you know about the horrendous making situation on the flightline and in the next you say that you oppose a solid method to help shore up the deficiencies. CUT (cross utilization training) can be a very good thing. There are always one or two shops that either have better manning numbers, or a lower consistent workload. Utilizing that underutilized resource puts warm bodies where they are needed most. It also gives the more backshop oriented maintainers a taste of what it is like to be on the line all day regardless of heat or cold. Granted, the period of time when non crew chiefs are being trained to become a crew chief, can be painful. But over all, the benefits outweigh the negatives (From a mx perspective).