Rather misleading IMO, unless he's being super-specific about myocarditis in this statement, blurred by references to heart attacks and 'cardiac effects' later in the article. Looking at the MHRA figures, last updated in December I see that:
'The MHRA has received 676 UK reports of suspected ADRs [Adverse Drug Reactions] to the COVID-19 Pfizer/BioNTech Vaccine in which the patient died shortly after vaccination, 1,176 reports for the COVID-19 Vaccine AstraZeneca, 24 for the COVID-19 Vaccine Moderna and 37 where the brand of vaccine was unspecified. The majority of these reports were in elderly people or people with underlying illness.' - https://www.gov.uk/government/publications/coronavirus-covid-19-vaccine-adverse-reactions/coronavirus-vaccine-summary-of-yellow-card-reporting
So that comes to 1913 'fatal events' in total, many of which have heart involvement if you look through the breakdown of the data:
I only counted 4 fatalities specifically linked to myocarditis, but looking at total fatalities linked to 'cardiac disorders' the number is 312 across all the jabs, with 22,395 total reported adverse cardiac reactions. You can explain it away (as MHRA does) by saying they were all old or with existing complications or statistically some were going to die anyway, and it is a minuscule percentage of the total number jabbed, but I think it's dishonest to imply that all adverse reactions are 'mild and transient'.
Otherwise seems fair comment, especially the point about covid itself posing severe risks to the heart.