There seem to be ongoing talk of other potential supply issues, e.g. food deliveries to supermarkets, etc. I'm guessing that the HGV drivers shortage isn't limited to fuel tanker drivers.
So presumably the idea is that bringing-in 5,000 more HGV drivers will help ease the pressure across the haulage industry. Not a bad plan, though it should have probably been done at an earlier stage.
And I think that the talk of fuel tanker driver shortage is a bit of a red herring. We are only talking about it because people panicked and they all now all trying to brim their tanks at the same time.
In other words, if someone started a rumor that we're gonna run out of pies, we'd be talking now of a nationwide shortage of bakery drivers
Once the panick is over, fuel supply to petrol stations will get back to near-normal (i.e. still suffering mild pressures here-and-there due the overall shortage of drivers).
What we need in order to fix the petrol station queues problem, is not more fuel tanker drivers to deliver more fuel, instead we just need to wait until everyone finished brimming their tanks.... I give it a few more days.