That's Joe Sugg's mum who makes jewellery, not Niomi's Joe.
This is true, but the difference is Zoe was close to her grandparents for years until she moved to Brighton. They used to feature quite a lot in her vlogs, do it does appear than it was Zoe who is at fault, as she prefers to show off Alfie's non divorced parents and give the image of the perfect family, rather than her own.
Like Joe who is her sibling goes to visit far more often & Dianne has seen them more than Zoe this year. Like Alfie & Zoe don't make any effort. I think it's in Zoe's vlog that pair are so busy opening their presents and videoing, they completely ignore Zoe's grandparents. You can hear Nan having a conversation with Dianne in the background. It does appear that Alfie doesn't even try to interact or have a conversation with them.
Like when Dianne found out who was performing in the concert tickets Zoe got her Nan, she immediately knew they were her Nan's favourite, while Zoe turns to her mum to check. Zoe & Alfie are so self obsessed, that they don't even understand that just making a bit of an effort would mean the world to her grandparents. Like Dianne just holding Zoe's grandad's and swaying made him so happy.