Question about "scope" of a "when" in a "block" in an Ansible playbook

Question

I am trying to modify an existing playbook that looks like:

---
## Capture currently installed mysql version
- name: Capture currently installed mysql version
  shell: mysql -V
  register: current_mysql_version
  ignore_errors: yes

- block:
  ## Stop running mysql instance
  - name: Stop running mysql instance
    service:
      name: mysqld
      state: stopped
      enabled: no
    ignore_errors: yes

  ## Create mysql stage directory
  - name: Create mysql stage directory
    file:
      path: "{{ play_mysql_dest_dir }}"
      state: directory
      group: root
      owner: root
      mode: 0755
.
.
.

  ## Delete mysql staging directory
  - name: Delete mysql staging directory
    file:
      path: "{{ play_mysql_dest_dir }}"
      state: absent

  ## Start mysql
  - name: Start mysql, if not started
    service:
      name: mysqld
      state: started

  ## Start tomcat
  - name: Start tomcat, if not started
    service:
      name: tomcat
      state: started
  when: current_mysql_version.stderr is search('command not found') or not play_latest_mysql_version in current_mysql_version.stdout

I was wondering, to WHICH tasks does the "when" get applied to?

Also, if I want to eliminate that last task (the "Start tomcat, if not started" one), do I just move the "when" line to the end of the "Start mysql, if not started" task (just for this question I am commenting out those lines, to make the change more visible), e.g.:

---
## Capture currently installed mysql version
- name: Capture currently installed mysql version
  shell: mysql -V
  register: current_mysql_version
  ignore_errors: yes

- block:
  ## Stop running mysql instance
  - name: Stop running mysql instance
    service:
      name: mysqld
      state: stopped
      enabled: no
    ignore_errors: yes

  ## Create mysql stage directory
  - name: Create mysql stage directory
    file:
      path: "{{ play_mysql_dest_dir }}"
      state: directory
      group: root
      owner: root
      mode: 0755
.
.
.

  ## Delete mysql staging directory
  - name: Delete mysql staging directory
    file:
      path: "{{ play_mysql_dest_dir }}"
      state: absent

  ## Start mysql
  - name: Start mysql, if not started
    service:
      name: mysqld
      state: started
  when: current_mysql_version.stderr is search('command not found') or not play_latest_mysql_version in current_mysql_version.stdout

  ## Start tomcat
#      - name: Start tomcat, if not started
#        service:
#          name: tomcat
#          state: started
#      when: current_mysql_version.stderr is search('command not found') or not play_latest_mysql_version in current_mysql_version.stdout

I think that the intention of the original developer was that the "when" should apply to each/all of the tasks starting from the "-block", but I am wondering if the "indentation" of the "when" line is correct (or not)? I am fairly new to working with Ansible :(...

Thanks, Jim