For reference I contacted them on Instagram here is what they said:
Hi Num - those who are successful in gaining a place on the insight scheme will be considered for a training contract, via a final panel interview.
The process is the same whether you are applying for an insight scheme and a TC, or just a TC and is: online application form > psychometric test > video interview > written exercise > final panel interview.
The only difference is that those who have applied for the insight scheme and TC, will attend their final panel interview as part of the insight scheme. Those who have applied for a direct TC, will attend the final panel interview as a standalone part of the process.
I hope that helps to clarify, but any other queries please do just get back in touch