That Thames Valley did not feel the need to provide even a token escort to such an occasion is of no surprise as they do indeed have the impression that this sort of thing is no more important than that of any funeral cortege that frequents the streets of the UK on any given day, none of these are entitled to an escort so why should it be different for people killed in the service of their country.
However it should be noted that should this have been involved with an officer of the said named constabulary division, an escort would have been provided as a matter of course with no thought to cost, politics or religion.
This situation is not uncommon in the UK were the populace takes a rather indifferent view too it’s war casualties in the main leaving only those directly involved with the deceased too see the process through, has been this way for many generations but without a major sea change in the way this countries voters view there armed forces and the job they currently task them to achieve little if anything will change.
Consequently the blame lays squarely on the shoulders of those that voted the people currently exercising their political will on the nation into office, not with the individuals themselves, you put them there, if your not satisfied with their performance, you have a duty to remove them from office as soon as your able.