Bachmann Oliver vs Hornby 14xx (Oliver class) loco

I wondered the same, as getting on a bit I'd far rather sit down at eye level with the trains than have to get down on my hands and knees. The only possible thing I can think of is to allow for all the shelving this guy houses his loco collection on - to say it is big is a massive understatement based on his 'collection 2017' video