It won't be as popular with the CPF crowd, but for the broader market will likely be just as popular if not more so. The sealed head means more waterproof/durable if you aren't interested in taking it apart or modding. For the primary LEO market where a light like this may be issued, that's a good thing.
We on CPF tend to be a bit myopic when it comes to lights. If we can't mod them, or get custom parts, we deem them bad, while the general user market might not care, or even prefer the simplicity/durability advantages.
However, if I were purchasing by the hundred for a department, having the light upgradable might lower the TCO and lengthen service life.