GW is currently the Beeb's lone offering for gardeners and it' snot enough and cannot be all things to all gardeners. That would require separate or more felxible programmes for beginners, knowledgeable amateurs, professionals and so on.
As for teh presenters Monty is a gifted, experienced but untrained amateur with a knack for communication and language. I preferred it with GH and AT but loathed it with Toby's prattle so am pleased to see Monty back but think Chris Beardshaw awould have been a better choice. Maybe he wasn't available.
Joe Swift is a designer, not a plantsman. As long as he's restricted to design features and commentary it's OK but he hardly knows which way is up when it comes to plant care and cultivation. He also has that dreadful Mockney accent which grates.
Rachel de Thame does actually know a lot about plants and plant care and I don't think is used to best efefct. Too fluffy by far in most of her spots but that's a production and directing failure.
Alys is excellent on veggies and quite a few other aspects of horticulture but has been having problems in her personal life which have required her devotion so I suspect wa snot taht available for TV stuff. I hope she returns soon as long as she's not allowed anywhere near forest gardening which was hopelessly badly done for GW in Toby's day.
Carol Klein is just brilliant on plant care and propagation but needs to clam herself down and speak in more moderate tones and cadences.
Toby may be a good gardener but he connivbed with the production team to "populariuse" GW and brought it down to a very low common denominator. he may well be fine with a series for young gardeners and beginners seeking cheap and instant solutions. Experienced gardeners know cheap is possible as long as you have patience. They also know that "instant" is either ephemeral or expensive.