I’ve had zero issues with 1×11 gearing. Even that really steep part of Bike Park Wales beast of burden fireroad is fine.
Tell you what, I took the T130 works to Bike Park Wales for the first time last weekend. Was worried I may have lusted after the G150 in place of it, but the T130 coped admirably. Flew up the climb significantly faster that mates on longer travel bikes, but was right up there on the descents too. The tabletops, rock steps and undulations of Sixtapod really showed off the playful, poppy nature of the bike. But the stiff, supportive frame and suspension easily dispatched the rougher red runs too. On the tighter, twistier parts of the trails it was a riot as it’s that much more agile/snappy than longer, slacker bikes. Can’t wait to go back there!