Personally, I would never order a car because it had a quicker lead time than a better car. Like many on this forum, I spend ages researching what car best suits our needs and preferences, and once we’ve decided the next step is, by asking the right questions, to find a dealership that has immediate build slot availability.
Leaving aside the Covid related supply issues, now mostly resolved, most of the very long delays that people report are due to their supplying dealer not having an available build slot, but not telling the customer that when they ordered. The dealer sits on the order for several months before placing it. The reason you can tell this is because on any thread about a particular car there is always someone who gets their factory order car much earlier than others, because their dealer was able to place the order with the factory immediately.
I can understand those who are getting their very first Motability car, and perhaps have a very old / unreliable private car, being heavily influenced by shorter lead times. For the rest, I think it’s far more sensible to order the very best car they can get and just stick with their current car until it arrives.
There have been a number of examples on this forum over the years of people who ordered a car because it was available quickly and then, once they had the car, regretted it. As they say, the best things in life are worth waiting for. There is often a reason why great cars have long leads times and not so great ones are available quickly!