Sure, but that's a problem for everything. You'll struggle to build a modern cloud architecture without at least a few people with extensive experience with the cloud.
You can get pretty good mileage following industry best practice -- pick React, pick TypeScript, and pick the most popular tools for each.
This looks an excellent approach.
>> you need to hire at least one person with enough knowledge to cut through the bullshit and build the right tech stack.
How do you ensure that this person will "build the right tech stack"? There are myriad of possibilities to go astray.