The assessments already are tough.
So for my child who has a 30k a year EHCP package..
To get her diagnosis was paediatrician, clinical psychologist, occupational therapist and speech and language therapist all doing assessments individually. They then meet at a multi-agency meeting to discuss their individual findings and whether the criteria for diagnosis has been met. If a child has any doubt they dont get the diagnosis.
Then for her EHCP she obviously had her diagnostic reports but she then had an educational psychologist assessment, 3 rounds of Outreach support in school during reception, a SALT report for an EHCNA, an OT report for an EHCNA.
As part of proving school can't meet her needs she has additional outreach support to basically check school literally have done everything possible. Again, if there is any suggestion school has missed something or it is home they don't agree to specialist.
To get the 1-1 funding I had to pursue tribunal for her and then school had to produce a costed provision map detailing every single penny for every provision. They had to provide extensive records and evidence to justify it. It had to go to a panel who went through it line by line.
To suggest it is easy assessments shows you come from a place of complete ignorance.