Regarding the score: Last year's T590 scored 87 % as well.
The score is more than just a performance rating. Performance is in there, but it only a small part of a bigger whole. For office laptops like the T15, it is an even smaller part compared to workstations or gaming notebooks. For office laptops, casing, input devices, weight and connectivity make up 45 % of the rating. App performance only makes up 8 %.
Our reviews are not purely subjective like other reviews, they are as objective as possible. This also means that we do not artificially lower the score because "it feels right".
The ThinkPad T15 can be both a good office laptop (because it objectively is a good machine for many productivity uses) and a disappointment for not featuring AMD Ryzen at the same time.
How our rating percentages are for each category: https://www.notebookcheck.net/Our-Rating-Criteria.16002.0.html