PIP2 sent DWP txt to wait 6 weeks

Hi , so I am the appointee of my mum who has multiple issues including long term schizophrenia difficulty walking due to hip replacement 20+years an now since 2017 paralysis an slurred speech so bad she need carers to do everything also slurred speech so most of noises she makes cant comprehend, she was originally on DLA which got stopped around time my son was born in 2016, only now have managed with help of local charity an this website done new PIP application , PIP2 form was sent with lots of evidence including care plan, dr reports prescriptions etc an recieved by DWP 23 june got a txt said

Thanks for sending us your 'How your disability affects you' form. We may need you to attend a consultation with a health professional before we make our decision. We'll contact you again if we do. Please call us if any of the details you gave us have changed. .

so today (2july) got this txt :

We've received the written report of your PIP assessment. We will write to you once we've made a decision on your PIP. As a guide you should hear from us within 6 weeks. You don't need to contact us unless any of the details you gave us have changed. Thank you.

I was under impression they would phone or request a assessment either face to face by phone or on paper, this response seems to indicate they had already done it? can anyone give any clarity on this? thanks in advance.